title: Syncope: the forgotten sign of pulmonary embolism.
authors.forename: J
authors.initials: J
authors.lastname: Varon
authors.forename: R E
authors.initials: RE
authors.lastname: Fromm
mesh_terms: D001784:Blood Gas Analysis; D003937:Diagnosis, Differential; D004636:Emergency Service, Hospital; D006801:Humans; D011237:Predictive Value of Tests; D011655:Pulmonary Embolism / Q000150:complications* / Q000175:diagnosis*; D013575:Syncope / Q000175:diagnosis / Q000209:etiology*